European tunnel linking two countries forced to close for £41m works causing traffic chaos
That incident prompted a comprehensive overhaul of road tunnel safety standards across ... the late 1990s and early 2000s, ...
CNN23 天
A vast undersea tunnel is being built that will change the road and rail map of Europe
The project will, in fact, be the world’s longest road and rail tunnel, and the world’s longest immersed tunnel. As an “immersed” tunnel, instead of being dug through solid land mass like ...